combinat-0.2.8.1: Generate and manipulate various combinatorial objects.

Safe Haskell	Safe
Language	Haskell2010

Math.Combinat.Sign

Description

Signs

Synopsis

Documentation

data Sign Source

Constructors

Plus
Minus

Instances

Eq Sign Source
Ord Sign Source
Read Sign Source
Show Sign Source
Monoid Sign Source
Random Sign Source

isPlus :: Sign -> Bool Source

isMinus :: Sign -> Bool Source

signValue :: Num a => Sign -> a Source

+1 or -1

paritySign :: Integral a => a -> Sign Source

Plus if even, Minus if odd

oppositeSign :: Sign -> Sign Source

mulSign :: Sign -> Sign -> Sign Source

productOfSigns :: [Sign] -> Sign Source